Personalized Federated Learning for ECG Classification Based on Feature Alignment
Personalized Federated Learning for ECG Classification Based on Feature Alignment
复制标题
基于特征对齐的心电分类个性化联邦学习
DOI:
10.1155/2021/6217601
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发表时间:
2021-11
期刊:
影响因子:
--
通讯作者:
Jiahui Jin
中科院分区:
文献类型:
--
作者:
Renjie Tang;Junzhou Luo;Junbo Qian;Jiahui Jin
Electrocardiogram (ECG) data classification is a hot research area for its application in medical information processing. However, insufficient data, privacy preserve, and local deployment are still challenging difficulties. To address these problems, a novel personalized federated learning method for ECG classification is proposed in this paper. First, a global model is trained with federated learning framework on multiple local data clients. Then, we use the global model and private data to train the local model. To reduce the feature inconsistency between global and private local data and for better fitting the private local data, a novel ”feature alignment” module is devised to guarantee the uniformity, which contains two parts, global alignment and local alignment, respectively. For global alignment, the graph metric of batch data is used to constrain the dissimilarity between features generated by the global model and local model. For local alignment, triplet loss is adopted to increase discriminative ability for local private data. Comprehensive experiments on our collected dataset are evaluated. The results show that the proposed method can be better adapted to local data and exhibit superior ability of generalization.
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DOI:
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发表时间:
2020-02
期刊:
ArXiv
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